Feature List Body Durable polycarbonate body with snap-on faceplate.Performance The smart Wi-Fi dimmer provides a maximum output of 400W for incandescent bulbs and 150W for fluorescent and LED bulbs.Operation Features an ON/OFF press and a 7 level touch slider for dimming functionality.Radio Frequency Certified IEEE 802.11 b/g Wi-Fi 2.4Ghz radio.Easy Installation The smart Wi-Fi dimmer installs just like a regular dimmer. Replaces single pole switches (not compatible with 3-way switches). Neutral wire required.WiZ App The smart Wi-Fi dimmer is can be controlled via the WiZ app (works with iOS and Android) from anywhere. Voice control can also be achieved by integrating the app with most smart speakers. Works with Google Assistant, Siri, Alexa and IFTTT.Operating Temperature -5°C~45°C (23°F~113°F).Environment Dry locations only.Suitable for indoor use only.